Replying to Ipod touch vs. nano

Yea I'm sure everyone will rabble about how useless this thread is but. I am buying a new macbook and it comes with either a 8g ipod touch or a 16g ipod nano. Now I know that the touch has all the games and internet and whatnot but here is where my issue for deciding is...In my vehicle I have a deck that my dad put in for me and I have an ipod cord that runs into my glovebox and hooks directly up to ipods and you can scroll thru it with the deck etc. Now my system in my truck works for every ipod except the touch for some reason (gay i know)

As of right now the size of the memory isnt that big of a deal because I only have ~1200 songs on my itunes. I usually only use my current ipod in my truck and am rarely carrying it around and listening to it while I'm walking/skiing but I feel like if I got the touch I would maybe use it more.

anyways, what would you recommend and why given my situation!